Could someone help me with a couple problems relating to quadratic formula? Heres one as an example. 2(12x^2-x)=15.
THANK YOU!!

Step-by-step explanation:

2(12x^2-x)=15

24x^2-2x-15=0

24x^2-20x+18x-15=p

4x(6x-5)+3(6x-5)=0

(4x+3)(6x-5)=0

x= -3/4 or 5/6

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;